A command line tool which translates SIDs to Usernames and vice versa including wellknown SIDs.
Download SidToUser.zip and extract it somewhere on your PC. Run the extracted SidToUser.exe from a command line.
SidToUser [SID|AccountName|Wellknown-SID-Type]
SID: Specifiy SID in the form of S-1-5-32-547
AccountName: Specify the name of a Windows Account
Wellknown-SID-Type: Use one of the following Wellknown SID Types. Run SidToUser /? to get a list of Wellknown-SID-Types.
.NET Framework 2.0 or above